boullder.com - robtex.com
boullder.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 136.243.72.27🇩🇪 Hetzner136.243.0.0/16 HETZNER-RZ-BLK-ERX3 | ||||||
| PTR | theming.co | ||||||
| NS | robotns3.second-ns.com ⭐ ⚠️ Not in parent delegation | ||||||
| A | 2001:67c:192c::add:a3🇩🇪 NORIS-NETWORK2001:67c:192c::/48 | ||||||
| PTR | robotns3.second-ns.com | ||||||
| A | 193.47.99.3🇩🇪 NORIS-NETWORK193.47.99.0/24 | ||||||
| PTR | robotns3.second-ns.com | ||||||
| NS | ns1.boullder.com ⚠️ Not in zone NS records | ||||||
| NS | ns1.first-ns.de ⚠️ Not in parent delegation | ||||||
| A | 2a01:4f8:0:a101::a:1🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| PTR | ns1.first-ns.de | ||||||
| A | 213.239.242.238🇩🇪 Hetzner213.239.192.0/18 HETZNER-RZ-NBG-BLK2 | ||||||
| PTR | ns1.first-ns.de | ||||||
| NS | ns2.boullder.com ⚠️ Not in zone NS records | ||||||
| NS | robotns2.second-ns.de ⚠️ Not in parent delegation | ||||||
| A | 2a01:4f8:0:1::5ddc:2🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| PTR | robotns2.second-ns.de | ||||||
| A | 213.133.100.103🇩🇪 Hetzner213.133.96.0/19 HETZNER-RZ-NBG-BLK1 | ||||||
| PTR | robotns2.second-ns.de | ||||||
| MX | mail.boullder.com ⭐ | ||||||
| A | 136.243.72.27🇩🇪 Hetzner136.243.0.0/16 HETZNER-RZ-BLK-ERX3 | ||||||
| PTR | theming.co | ||||||
| SOA | robotns3.second-ns.comlitty\@studio.gmail.com 2026-03-18 #2 | ||||||
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1774604242 | ||||||
Subdomains
mail.boullder.com |
Same first word
boullder.com |
Similar names
DNS History
7 records (7 active, 0 former)
●NSns1.boullder.com2026-02-26 → 2026-03-27 · 2 obs
● 2026-03-27 09:38:40
●NSns1.first-ns.de2026-02-26 → 2026-03-27 · 2 obs
● 2026-03-27 09:38:40
●NSns2.boullder.com2026-02-26 → 2026-03-27 · 2 obs
● 2026-03-27 09:38:40
●NSrobotns2.second-ns.de2026-02-26 → 2026-03-27 · 2 obs
● 2026-03-27 09:38:40
●NSrobotns3.second-ns.com2026-02-26 → 2026-03-27 · 2 obs
● 2026-03-27 09:38:40
●MXmail.boullder.com2026-02-26 → 2026-03-27 · 2 obs
● 2026-03-27 09:38:40
●A136.243.72.272026-02-26 → 2026-03-27 · 2 obs
● 2026-03-27 09:38:40
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| boullder.com | ns1.boullder.com, ns2.boullder.com | 2 records |
✅ Authoritative Response
Server:136.243.72.27
NS records: ns1.boullder.com, ns2.boullder.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for boullder.com (unsigned zone)
⏱️ Timing
Total: 331ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 136.243.72.27 |
| NS | 3 | ns1.first-ns.de, robotns3.second-ns.com... |
| MX | 1 | mail.boullder.com (pri: 10) |
| SOA | 1 | robotns3.second-ns.com litty\.studio.gma |
📌 Glue Records Collected
Total: 2
In-bailiwick: 2 (ns1.boullder.com, ns2.boullder.com)
Analysis
Hierarchy
mail.boullder.com is a child of boullder.com.
IP Addresses
boullder.com resolves to one IP number: 136.243.72.27.
Other host names, for instance mail.theming.co, theming.co, detekt.org, mail.detekt.org and mail.boullder.com share IP numbers with boullder.com.
Name Servers
boullder.com is delegated to five name servers: ns1.boullder.com, ns2.boullder.com, robotns3.second-ns.com, ns1.first-ns.de and robotns2.second-ns.de.
boullder.com at least partially shares name servers with other domains, including maschinenpark.org, ammersee-sportverein.de, 61m.de, con-time.de and eurotolia.de.
Host names with two IP numbers:
robotns3.second-ns.com: 2001:67c:192c::add:a3 and 193.47.99.3
ns1.first-ns.de: 2a01:4f8:0:a101::a:1 and 213.239.242.238
robotns2.second-ns.de: 2a01:4f8:0:1::5ddc:2 and 213.133.100.103
Mail Servers
A single mail server handles boullder.com, mail.boullder.com.
Host name mail.boullder.com resolves to a single IP: 136.243.72.27.